package estadao;

import com.sun.rave.web.ui.appbase.AbstractPageBean;
import com.sun.webui.jsf.component.TextArea;
import encontrar.Encontrar;
import entidades.Post;
import hibernate.HibernateUtil;
import javax.faces.FacesException;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.w3c.dom.CharacterData;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/**
 * <p>Page bean that corresponds to a similarly named JSP page.  This
 * class contains component definitions (and initialization code) for
 * all components that you have defined on this page, as well as
 * lifecycle methods and event handlers where you may add behavior
 * to respond to incoming events.</p>
 *
 * @version Atualizar.java
 * @version Created on 11/12/2012, 10:51:42
 * @author glaucio
 */
public class Atualizar extends AbstractPageBean {
  // <editor-fold defaultstate="collapsed" desc="Managed Component Definition">

  /**
   * <p>Automatically managed component initialization.  <strong>WARNING:</strong>
   * This method is automatically generated, so any user-specified code inserted
   * here is subject to being replaced.</p>
   */
  private void _init() throws Exception {
  }
  private TextArea textArea1 = new TextArea();

  public TextArea getTextArea1() {
    return textArea1;
  }

  public void setTextArea1(TextArea ta) {
    this.textArea1 = ta;
  }

  // </editor-fold>
  /**
   * <p>Construct a new Page bean instance.</p>
   */
  public Atualizar() {
  }

  /**
   * <p>Callback method that is called whenever a page is navigated to,
   * either directly via a URL, or indirectly via page navigation.
   * Customize this method to acquire resources that will be needed
   * for event handlers and lifecycle methods, whether or not this
   * page is performing post back processing.</p>
   *
   * <p>Note that, if the current request is a postback, the property
   * values of the components do <strong>not</strong> represent any
   * values submitted with this request.  Instead, they represent the
   * property values that were saved for this view when it was rendered.</p>
   */
  @Override
  public void init() {
    // Perform initializations inherited from our superclass
    super.init();
    // Perform application initialization that must complete
    // *before* managed components are initialized

    // <editor-fold defaultstate="collapsed" desc="Managed Component Initialization">
    // Initialize automatically managed components
    // *Note* - this logic should NOT be modified
    try {
      _init();
    } catch (Exception e) {
      log("Atualizar Initialization Failure", e);
      throw e instanceof FacesException ? (FacesException) e : new FacesException(e);
    }

    // </editor-fold>
    // Perform application initialization that must complete
    // *after* managed components are initialized
    writeNews();
  }

  /**
   * <p>Callback method that is called after the component tree has been
   * restored, but before any event processing takes place.  This method
   * will <strong>only</strong> be called on a postback request that
   * is processing a form submit.  Customize this method to allocate
   * resources that will be required in your event handlers.</p>
   */
  @Override
  public void preprocess() {
  }

  /**
   * <p>Callback method that is called just before rendering takes place.
   * This method will <strong>only</strong> be called for the page that
   * will actually be rendered (and not, for example, on a page that
   * handled a postback and then navigated to a different page).  Customize
   * this method to allocate resources that will be required for rendering
   * this page.</p>
   */
  @Override
  public void prerender() {
  }

  /**
   * <p>Callback method that is called after rendering is completed for
   * this request, if <code>init()</code> was called (regardless of whether
   * or not this was the page that was actually rendered).  Customize this
   * method to release resources acquired in the <code>init()</code>,
   * <code>preprocess()</code>, or <code>prerender()</code> methods (or
   * acquired during execution of an event handler).</p>
   */
  @Override
  public void destroy() {
  }

  /**
   * <p>Return a reference to the scoped data bean.</p>
   *
   * @return reference to the scoped data bean
   */
  protected ApplicationBean1 getApplicationBean1() {
    return (ApplicationBean1) getBean("ApplicationBean1");
  }

  /**
   * <p>Return a reference to the scoped data bean.</p>
   *
   * @return reference to the scoped data bean
   */
  protected SessionBean1 getSessionBean1() {
    return (SessionBean1) getBean("SessionBean1");
  }

  /**
   * <p>Return a reference to the scoped data bean.</p>
   *
   * @return reference to the scoped data bean
   */
  protected RequestBean1 getRequestBean1() {
    return (RequestBean1) getBean("RequestBean1");
  }

  private String limpaHtml(String s) {
    String a = s;

    a = a.replace("<strong>", "");
    a = a.replace("</strong>", "");
    a = a.replace("<p>&nbsp;</p>", "");
    a = a.replace("</p>", "");
    a = a.replace("&#8211;", "");
    a = a.replace("<br/>", "");

    return a;
  }

  public void writeNews() {
    textArea1.setText("");

    try {
      DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
      URL u = new URL("http://blogs.estadao.com.br/transito/feed/");
      Document doc = builder.parse(u.openStream());
      NodeList nodes = doc.getElementsByTagName("item");

      for (int i = 0; i < nodes.getLength(); i++) {
        Element element = (Element) nodes.item(i);

        //<pubDate>Thu, 06 Dec 2012 09:35:54 +0000</pubDate>
        String data = getElementValue(element, "pubDate");
        DateFormat formatter = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z", Locale.US);
        Date dataHora = formatter.parse(data);

        String texto = getElementValue(element, "content:encoded");

        String[] posts = texto.split("<p>");
        for (int j = 0; j < posts.length; j++) {
          String p = limpaHtml(posts[j]);

          if ((p.length() > 0)) {
            int c = p.codePointAt(0);
            if ((c >= 48) && (c <= 57)) { //começa com número (Hora)
              Date hora = getHora(p);
              dataHora.setHours(hora.getHours());
              dataHora.setMinutes(hora.getMinutes());
              dataHora.setSeconds(0);

              try {

                Session s = HibernateUtil.getSessionFactory().getCurrentSession();
                Transaction t = s.beginTransaction();
                Post post = new Post(dataHora, p);
                s.saveOrUpdate(post);
                t.commit();

                DateFormat fData = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
                textArea1.setText(textArea1.getText() + fData.format(dataHora) + " --> " + p + "\n");
              } catch (Exception e) {
                error(e.getMessage());
              }
            }
          }
        }
      }
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }

  private Date getHora(String post) {
    try {
      String hora = post.split(" ")[0];
      hora = hora.replace('h', ':');
      if (hora.charAt(hora.length() - 1) == ':') {
        hora += "0";
      }
      DateFormat formatter = new SimpleDateFormat("H:m");
      Date h = formatter.parse(hora);
      return h;
    } catch (Exception ex) {
      ex.printStackTrace();
    }
    return null;
  }

  private String getCharacterDataFromElement(Element e) {
    try {
      Node child = e.getFirstChild();
      if (child instanceof CharacterData) {
        CharacterData cd = (CharacterData) child;
        return cd.getData();
      }
    } catch (Exception ex) {
      ex.printStackTrace();
    }
    return "";
  }

  protected float getFloat(String value) {
    if (value != null && !value.equals("")) {
      return Float.parseFloat(value);
    }
    return 0;
  }

  protected String getElementValue(Element parent, String label) {
    return getCharacterDataFromElement((Element) parent.getElementsByTagName(label).item(0));
  }
}

